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Re: 2004 quest driver side wiper is not working
You might have worn splines on the shaft of where the wiper arm attaches. You can try to tighten this bolt alittle tighter. just make sure they are in the rest position (normal position) and wipers off. if that bolt is tight , then it could be some worn out link bars that attach to both wiper arms from underneath. I hope this helps.
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You must remove the wiper arm to make sure the serrations on both the arm and where it mounts to are not damaged. Turn on the wipers and see if the nub that the wiper arm mounts to is moving.
If it isn't, there is a mechanism called the Wiper Transmission. It is located in the cowl at the bottom of the windshield. The device has a number of arms. The arm that connects the right side to the transmission is off. This is usually the fault of a small round plastic piece at the end of the arm. Simply putting it back on is nit recommended because it will probably fall off again. This plastic piece is attainable at most good auto parts places.
This minivan has just one wiper motor (and it obviously works), so the problem is after the motor. The linkage between the wiper motor and the passenger wiper arm has come loose or lost a nut. These wiper arm joints are under some fairly severe service conditions, and like to self-disassemble.
Here's the 2004 Sienna wiring diagram - enlarge to discern.
There are nuts on the wiper arm posts under plastic caps[ if still there ] they looen sometimes and the arm won't move turn off the wipers so the 'park' and check the nut for tightness - should be quite snug. it that dosen't fix it then you have a linkage problem from the motor.
It could just be the bolt holding the arm on. Sometimes they vibrate loose. Does the passenger side work properly? Can you move the driver side wiper arm across the windshield by hand? There should be some soft of plastic cap at the pivot point of the wiper arm that can be removed to get to the bolt - so you can see if its loose.
There is a linkage that connects the driver side and passenger side wipers so they can work in tandem. That linkage has either broken or come loose at the driver side wiper or the passenger side wiper. Check this link to see how wipers operate and then you can examine yours to see where the problem exists.
hi, im not sure if they would have a separate motor each because most vehicles have a linkage bar that connects the two wipers to keep them in time with each other. without the wipers on, try manually rotating the paasenger side wiper (be gentle) if that moves easily and the drivers side does not even flinch, then it could be a broken linkage. hope i helped!